

PT-141 10 mg
Melanocortin receptor agonist (bremelanotide) studied in neuroendocrine work.
In stock · ships same day on orders before 2pm ET
Wholesale pricing starts at 25 vials per SKU, with net-30 terms for verified institutions. It is quoted per order rather than applied in the cart — ask for a wholesale quote.
Every lot of PT-141 in the COA library · Latest lot report
Ships same day on orders before 2pm ET. For laboratory research use only. Not for human or animal consumption.
Supplies researchers add to this order

What is PT-141?
PT-141, also called bremelanotide, is a cyclic heptapeptide analogue of alpha-MSH and a metabolite of melanotan-2. It acts at melanocortin receptors, principally MC3R and MC4R, and is studied for central rather than peripheral melanocortin signalling. Pepstral supplies it as a lyophilized powder for in-vitro laboratory research only.
→Read the full PT-141 research guide
What is PT-141 studied for?
- MC3R and MC4R binding assays
- Central melanocortin signalling research
- Neuroendocrine pathway studies
- Comparisons against melanotan-2
All applications above are in-vitro or preclinical research contexts. PT-141 is sold for laboratory research only and is not for human or animal use.
What does the certificate for lot PT141-0803 show?
Every lot of PT-141 is tested by an independent US laboratory before it is listed. The report for lot PT141-0803 is in the COA library and the lot number printed on the vial matches it. The current results:
| Test | Method | Lot PT141-0803 result |
|---|---|---|
| Identity | LC-MS/MS | PT-141 · conforms |
| Content | HPLC quantitation | 10.24 mg |
| Purity | RP-HPLC (214 nm) | 99.85% |
| Endotoxin | USP <85> | <0.05 EU/mL |
| Heavy metals | USP <232> | <0.01 ppm |
How is PT-141 handled and stored?
Sealed vials are stored at -20°C away from light and keep for 24 months. To reconstitute, add bacteriostatic water slowly down the inside wall of the vial and swirl until clear; never shake. Once in solution, keep at 2 to 8°C and use within our 28-day default for a preserved solution. The concentration table gives the dilution volumes and microlitre aliquots for this vial.
Frequently asked questions
How does PT-141 relate to melanotan-2?
It is a metabolite of it, with the C-terminal amide replaced, which shifts activity away from MC1R and pigmentation.
Which receptors does it prefer?
It is described as acting principally at MC3R and MC4R rather than the MC1R pigmentary pathway.
Is PT-141 for human use?
No. Every product on this site is sold for in-vitro laboratory research only and is not for human or animal consumption, diagnostic or therapeutic use.
Related reading
More in Longevity & Skin




